Journal of the Korean Statistical Society
Journal of the Korean Statistical Society > 2015 > 44 > 2 > 321-326
Journal of the Korean Statistical Society > 2016 > 45 > 3 > 422-438
Journal of the Korean Statistical Society > 2015 > 44 > 2 > 321-326
Journal of the Korean Statistical Society > 2016 > 45 > 3 > 422-438